InCircle

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2519 [PDF](https://uva.onlinejudge.org/external/115/p11524.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11524/2c217ffa5d22131b6f158950df6b512e927e421b.png)

输入输出格式

输入格式

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11524/a75acf84eb5f7f7d0b4d05889b0a0b020cab6289.png)

输出格式

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11524/736d8587013477c6333db56b9955144e43d76d29.png)

输入输出样例

输入样例 #1

2
140.9500536497
15.3010457320 550.3704847907
464.9681681852 65.9737378230
55.0132446384 10.7791711946
208.2835101182
145.7725891419 8.8264176452
7.6610997600 436.1911036207
483.6031801012 140.2797089713

输出样例 #1

400156.4075
908824.1322